Clutch-pulley.



r y Y Patented Apr. 22, 1902; 1'. .1. OBBIEN & H. L. ALLEN.

CLUTCH PULLEY.

. (Application filed May 17, 1901.)

(No llodal.) v l No. 698,3l3. I

m N R lilllllllliV/A m WITNESSES, INVENTOW f nez lwe'n n 1: ucnms PETERS w. PHo'roLF-HQ. WASHINGTON, m c.

UNITED STATES PATENT OFFICE.-

THOMAS J. OBRIEN AND HoMER L. ALLEN, OF CAIRO, ILLINOIS.

CLU-TCH-PULLEY.

SPECIFICATIQN forming part of Letters'Patent No. 698,3l3, dated April 22, 1902.

Application filed May 17, 1901'. Serial ll'o. 60,701. (No model.)

To all whom it may concern:

Be it known that we, THOMAS J. OBRIEN and HOMER L. ALLEN, citizens of the United States, and residents of Cairo, in the countyv of Alexander and State of Illinois, have invented a new and Improved'Olutch-Pu11ey,

of which the following is a full, clear, and eX-' act description.

This invention relates we clutch-pulley supporting clutch devices for engaging the disk, whereby to connect the wheel with the shaft.

This specification is a specific description of one form of the invention, while the claim is a definition of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is an elevational view of the pulley, showing the shaft in section. Fig. 2 is a section on the line 2 2 of Fig. 1, and Fig. 3 is a detail view of oneof the clutches.

it indicates the shaft, and b indicates the clutch-disk which is fastened thereto.'

0 indicates the rim of the pulley, which may be formed of any material desired and in any manner. The web of the pulley is made up of a number of spokes d, arranged in pairs, the members of which are separated from each other to form an annular cavity e within the web of the Wheel. These spokes d are fastened to the rim a and extend inward "to the two hubs f, tolwhich the spokes are fastened rigidly'or formed integral therewith, as desired. The hubs f are mounted loosely on the shaft or and maybe provided at suitable or desired points with lubricating devices. The clutch-disk ,b is situate in the cavity e, and the pulley is.-thus given firm bearing on the shaft at each side ofthedisk, so that the strain on the pulley is borne evenly thereby and there is no danger of twisting the pulley on the shaft.

9 indicates a series of levers, which are here shown tobe four in number andwhich are fulcrumed on certain of the spokes d. These levers have their inner ends projected into the cavity 6 and carry clutch members thenbuilding up the pulley around it.

h, provided with working faces h, of leather or other analogous material. The outer ends of thelevers g are connected with turnbuckles 71, the turnbuckles and leversforming toggles, which are actuated bya sleeve 70, sliding on the shaft a and provided with a collar 1e, engaged by the operating-lever k in the usual manner.

By throwing the toggle formed-by the parts 2' and g the clutch-members it may be engaged with the disk g, and thus thewheelor pulley will be fastened to the shaft. Upon disengaging the clutch members from the disk the'pulley will be rendered loose. When thepulley is out of gear, the pulley itself not only stands still, but all of theclutch devices,

and therefore the partsare exposed and may be adjusted at will notwithstanding that the shaft on may be turning rapidly.

The disk I) also serves to hold the pulley on the shaft, itbeing necessary to fasten the disk only to the shaft. The parts are assembled by. first placing the disk in position itnd t is immaterial as to what form the web of the pulley assumesthat is to say, whether it be formed of spokes, asillustrated in the drawmember carried by the pulley and working with the periphery of the disk, and means for operating-the clutch member.

In testimonywhereofwe. have signed our namesto this specification in the presence of two subscribing witnesses.

THOMAS J. OBRIEN. HOMER ALDEN. Witnesses:

WM. N. BUTLER, HOOKER V. HARRIs0N. 

